Granted Patent
Utility
US 6,440,402 · App. 10/020,642
Photostable sunscreen compositions and methods of stabilizing
Inventors:
Anthony D. Gonzalez, Andrew H. Pechko, Robert Kalafsky
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Dec 14, 2001
Inventors
Anthony D. Gonzalez
Andrew H. Pechko
Robert Kalafsky
Assignee (at issue)
Avon Products, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.